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<html>
  <head>
    <title>
      Issue #119 - Test IS attribute
    </title>
  </head>
  <body>
    <h1>
      About this case
    </h1>
    <p>
      This test case ensures that the <kbd>is</kbd> attribute it handled correctly. Tidy accepts <kbd>is</kbd> for all versions of HTML, but ensures that it is correct per the HTML5 rules.
    </p>
    <ul>
      <li is="">
        <kbd>is</kbd> must have a value.
      </li>
      <li is="">
        <kbd>is</kbd> must have a value.
      </li>
      <li is="custom_element">
        <kbd>is</kbd> must contain a hyphen.
      </li>
      <li is="custom-element me_too">
        <kbd>is</kbd> must not contain a space.
      </li>
      <li is="custom-element">
        <kbd>is</kbd> is correct for this paragraph.
      </li>
      <li>
        <pizzerias is="custom-element">
          <kbd>is</kbd> can be used with user-defined tags…
        </pizzerias>
        <jets-pizza is="custom-element">
          …unless they look like autonomous custom tags.
        </jets-pizza>
        <new-tag is="custom-element">
          <kbd>is</kbd> cannot be used with autonomous custom tags detected in the document, either.
        </new-tag>
      </li>
    </ul>
  </body>
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